CN212695103U - Manual opening and closing mechanism of circuit breaker - Google Patents
Manual opening and closing mechanism of circuit breaker Download PDFInfo
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- CN212695103U CN212695103U CN202021521782.0U CN202021521782U CN212695103U CN 212695103 U CN212695103 U CN 212695103U CN 202021521782 U CN202021521782 U CN 202021521782U CN 212695103 U CN212695103 U CN 212695103U
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Abstract
The utility model relates to an electric power system power-off equipment technical field, concretely relates to manual divide-shut brake mechanism of circuit breaker, include: casing, permanent magnetic mechanism and manual divide-shut brake mechanism, wherein: the shell is horizontally arranged, and a separation plate is horizontally welded in the middle of the shell; the permanent magnet mechanism is fixed on the partition plate; the manual opening and closing mechanism comprises a transmission shaft, a connecting bolt and a driving plate, the transmission shaft is located below the partition plate, the manual opening and closing mechanism is rotatably connected to the shell, and the manual opening and closing mechanism drives the movable iron core of the permanent magnet mechanism to move up and down. The manual opening and closing mechanism of the utility model is in transmission connection with the permanent magnetic mechanism, when the driving plate is pulled by external force, the manual opening and closing mechanism drives the first driving shaft and the second driving shaft of the permanent magnetic mechanism to move up and down, thereby realizing closing and opening; the whole process can be completed without the participation of a standby power supply, and the reliability and the safety of the permanent magnet mechanism breaker are improved.
Description
Technical Field
The utility model relates to an electric power system outage equipment technical field, concretely relates to manual divide-shut brake mechanism of circuit breaker.
Background
The permanent magnetic mechanism circuit breaker is a device capable of instantly cutting off a fault circuit on a line and protecting power supply equipment. The existing permanent magnet mechanism circuit breaker is widely applied to the field of power equipment due to the advantages of reliable performance, long service life and the like. The breaker comprises a permanent magnetic mechanism and a vacuum bubble, wherein the permanent magnetic mechanism comprises a break-brake static iron core, a close-brake static iron core, a movable iron core, a permanent magnet, a break-brake coil and a close-brake coil, the break-brake coil and the close-brake coil are arranged at two ends of the permanent magnetic mechanism, the movable iron core can be controlled to be attracted to the break-brake static iron core or the close-brake static iron core through the break-brake coil and the break-brake coil, and the movable iron core can move up and down. Chinese patent CN205230960U discloses a permanent magnet mechanism for high voltage circuit breaker. The vacuum bubble is an electric element integrating the on-off circuit, arc extinction and insulation, and is connected with the permanent magnet mechanism through an electrode pull rod of the vacuum bubble, so that the movable iron core of the permanent magnet mechanism drives the electrode pull rod to move up and down when moving up and down, and further the connection and disconnection of a power system circuit are realized.
However, the existing permanent magnet mechanism needs a standby power supply (generally a storage battery) to provide an action power supply for a mechanism coil, once a standby power supply circuit fails and cannot work, the permanent magnet mechanism cannot realize switching-off and switching-on, and potential safety hazards exist.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a manual divide-shut brake mechanism of circuit breaker to solve current permanent magnetic mechanism and break down unable during operation in stand-by power supply circuit, permanent magnetic mechanism will unable realization separating brake and combined floodgate, has the problem of potential safety hazard.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a manual opening and closing mechanism of a circuit breaker comprises: casing, permanent magnetic mechanism and manual divide-shut brake mechanism, wherein:
the shell is horizontally arranged, the lower end of the shell is of a hollow rectangular structure with an opening, and a separation plate is horizontally welded in the middle of the shell; a rectangular notch is reserved on the front end face of the shell and is positioned above the partition plate;
the permanent magnet mechanism is fixed on the partition plate; the upper end and the lower end of the movable iron core of the permanent magnetic mechanism are correspondingly provided with a first driving shaft and a second driving shaft, the second driving shaft penetrates through the partition plate downwards, and the lower end of the second driving shaft is provided with a connecting hole;
the manual opening and closing mechanism comprises a transmission shaft, a connecting bolt and a driving plate, the transmission shaft is positioned below the partition plate, the front end of the transmission shaft is rotatably connected to the front end surface of the shell, and the rear end of the transmission shaft penetrates through the rear end surface of the shell and is rotatably connected with the rear end surface of the shell; the middle part of the transmission shaft is provided with 2 driving arms at intervals, the 2 driving arms are positioned at two sides of the tail end of the second driving shaft, and the 2 driving arms are provided with sliding chutes corresponding to the connecting holes; the connecting bolt is inserted into the sliding groove and the connecting hole to connect the driving arm with the second driving shaft; the drive plate is connected to the rear end of the transmission shaft.
Preferably, the two ends of the driving plate are respectively and integrally formed with a circular ring.
Preferably, the transmission shaft is formed by integrally forming a front end cylinder, a middle cylinder, a rear end cylinder, a limiting square column and a locking threaded column which are sequentially connected, wherein a first necked flange is sleeved on the front end cylinder, penetrates through the front end surface of the shell and abuts against the inner side of the shell; a second necked flange is sleeved on the rear end cylinder, penetrates through the rear end face of the shell and is fixed on the outer side of the shell by screws; a locking nut is connected to the locking threaded column in a threaded manner; the middle part of the driving plate is provided with a connecting column, the connecting column and the driving plate are provided with limiting holes corresponding to the limiting square columns, and the connecting column is sleeved on the limiting square columns.
Preferably, the outer diameters of the front end cylinder and the rear end cylinder are equal and smaller than the outer diameter of the middle cylinder.
Compared with the prior art, the utility model discloses following beneficial effect has:
the manual opening and closing mechanism of the utility model is in transmission connection with the permanent magnetic mechanism, when the driving plate is pulled by external force, the manual opening and closing mechanism drives the first driving shaft and the second driving shaft of the permanent magnetic mechanism to move up and down, thereby realizing closing and opening; the whole process can be completed without the participation of a standby power supply, and the reliability and the safety of the permanent magnet mechanism breaker are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom view of FIG. 1;
fig. 3 is a schematic structural diagram of the permanent magnet mechanism of the present invention;
fig. 4 is a schematic structural diagram of the manual opening and closing mechanism of the present invention;
FIG. 5 is an exploded view of FIG. 4;
description of the main reference numerals:
100. a housing; 101. a partition plate; 102. a rectangular notch;
200. a permanent magnet mechanism; 201. a first drive shaft; 202. a second drive shaft; 203. connecting holes;
300. a manual opening and closing mechanism; 301. a drive shaft; 301a, a front end cylinder; 301b, middle cylinder; 301c, a rear cylinder; 301d, limiting square columns; 301e, locking the threaded column; 302. a connecting bolt; 303. a drive plate; 3031. a circular ring; 304. a drive arm; 3041. a chute; 305. a first necked-in flange; 306. a second necked-in flange; 307. locking the nut; 308. connecting columns; 309. a limiting hole;
400. vacuum bubble; 401. and a pole pull rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the technical personnel in the field without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to those skilled in the art.
Referring to fig. 1-5, a manual switching on/off mechanism of a circuit breaker comprises: casing 100, permanent magnetism mechanism 200 and manual divide-shut brake mechanism 300, wherein:
the shell 100 is horizontally arranged, the shell 100 is a hollow rectangular structure with an opening at the lower end, and a separation plate 101 is horizontally welded in the middle of the shell 100; a rectangular notch 102 is reserved on the front end face of the shell 100, and the rectangular notch 102 is positioned above the partition plate 101;
permanent magnetic mechanism 200 is fixed on partition plate 101; the upper end and the lower end of the movable iron core of the permanent magnet mechanism 200 are correspondingly provided with a first driving shaft 201 and a second driving shaft 202, the second driving shaft 202 downwards penetrates through the partition plate 101, and the lower end of the second driving shaft 202 is provided with a connecting hole 203;
the manual switching-on and switching-off mechanism 300 comprises a transmission shaft 301, a connecting bolt 302 and a driving plate 303, wherein the transmission shaft 301 is positioned below the partition plate 101, the front end of the transmission shaft is rotatably connected to the front end surface of the shell 100, and the rear end of the transmission shaft penetrates through the rear end surface of the shell 100 and is rotatably connected with the rear end surface of the shell 100; the middle part of the transmission shaft 301 is provided with 2 driving arms 304 at intervals, the 2 driving arms 304 are positioned at two sides of the tail end of the second driving shaft 202, and the 2 driving arms 304 are provided with sliding grooves 3041 corresponding to the positions of the connecting holes 203; the connecting bolt 302 is inserted into the sliding groove 3041 and the connecting hole 203 to connect the driving arm 304 and the second driving shaft 202; a drive plate 303 is attached to the rear end of the drive shaft 301. In this embodiment, the driving plate 303 has two ends each integrally formed with a ring 3031.
In addition, in the present embodiment, the specific mechanisms of the transmission shaft 301 are: the transmission shaft 301 is formed by integrally forming a front end cylinder 301a, a middle cylinder 301b, a rear end cylinder 301c, a limit square column 301d and a locking threaded column 301e which are sequentially connected, wherein a first necked-in flange 305 is sleeved on the front end cylinder 301a, and the first necked-in flange 305 penetrates through the front end surface of the shell 100 and abuts against the inner side of the shell; a second necked flange 306 is sleeved on the rear end cylinder 301c, and the second necked flange 306 penetrates through the rear end face of the shell 100 and is fixed on the outer side of the shell by screws; a locking nut 307 is connected to the locking threaded column 301e in a threaded manner; the middle part of the driving plate 303 is provided with a connecting column 308, the connecting column 308 and the driving plate 303 are provided with a limiting hole 309 corresponding to the limiting square column 301d, and the connecting column 308 is sleeved on the limiting square column 301 d. The outer diameters of the front end cylinder 301a and the rear end cylinder 301c are equal and smaller than the outer diameter of the middle cylinder 301 b.
When the vacuum bulb 400 is used, the vacuum bulb 400 is fixed on the casing 100, and the pole pull rod 401 of the vacuum bulb 400 penetrates through the upper surface of the casing 100 downwards and then is connected with the top end of the first driving shaft 201. The connection can be as follows: the pole pull rod 401 and the first driving shaft 201 are both provided with threads and then connected by a threaded sleeve 2.
The working principle is as follows: when the external standby power fails and cannot provide working power for the permanent magnet mechanism 200, the manual switching-on/off mechanism 300 is used for operation, and the method specifically comprises the following steps: with the orientation of fig. 2 as a reference, the driving plate 303 is pulled downwards by the ring 3031 at the right end of the driving plate 303, and when the right end of the driving plate 303 moves downwards, the driving shaft 301 connected with the driving plate 303 and the driving arm 304 arranged on the driving shaft 301 are driven to move clockwise; when the driving arm 304 moves clockwise, an upward thrust is generated on the second driving shaft 202 through the connecting bolt 302, and under the action of the thrust, the movable iron core of the permanent magnet mechanism 200, the first driving shaft 201 and the second driving shaft 202 move upward together; when the first driving shaft 201 moves upward, an upward thrust is generated on the pole rod 401 of the vacuum bulb 400, and then the closing is completed.
Similarly, the driving plate 303 is pulled downwards by the ring 3031 at the left end of the driving plate 303, and when the left end of the driving plate 303 moves downwards, the driving shaft 301 connected with the driving plate 303 and the driving arm 304 arranged on the driving shaft 301 are driven to move anticlockwise; when the driving arm 304 moves counterclockwise, a downward pulling force is generated on the second driving shaft 202 through the connecting bolt 302, and under the action of the pulling force, the movable iron core of the permanent magnet mechanism 200, the first driving shaft 201 and the second driving shaft 202 move downward together; when the first driving shaft 201 moves downwards, a downward pulling force is generated on the pole rod 401 of the vacuum bulb 400, and then the opening is completed.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (4)
1. The utility model provides a manual divide-shut brake mechanism of circuit breaker which characterized in that includes: casing, permanent magnetic mechanism and manual divide-shut brake mechanism, wherein:
the shell is horizontally arranged, the lower end of the shell is of a hollow rectangular structure with an opening, and a separation plate is horizontally welded in the middle of the shell; a rectangular notch is reserved on the front end face of the shell and is positioned above the partition plate;
the permanent magnet mechanism is fixed on the partition plate; the upper end and the lower end of the movable iron core of the permanent magnetic mechanism are correspondingly provided with a first driving shaft and a second driving shaft, the second driving shaft penetrates through the partition plate downwards, and the lower end of the second driving shaft is provided with a connecting hole;
the manual opening and closing mechanism comprises a transmission shaft, a connecting bolt and a driving plate, the transmission shaft is positioned below the partition plate, the front end of the transmission shaft is rotatably connected to the front end surface of the shell, and the rear end of the transmission shaft penetrates through the rear end surface of the shell and is rotatably connected with the rear end surface of the shell; the middle part of the transmission shaft is provided with 2 driving arms at intervals, the 2 driving arms are positioned at two sides of the tail end of the second driving shaft, and the 2 driving arms are provided with sliding chutes corresponding to the connecting holes; the connecting bolt is inserted into the sliding groove and the connecting hole to connect the driving arm with the second driving shaft; the drive plate is connected to the rear end of the transmission shaft.
2. The manual opening and closing mechanism of circuit breaker according to claim 1, wherein a ring is integrally formed at each of both ends of said driving plate.
3. The manual opening and closing mechanism of the circuit breaker according to claim 1, wherein the transmission shaft is formed by integrally forming a front end cylinder, a middle cylinder, a rear end cylinder, a limiting square column and a locking threaded column which are sequentially connected, wherein a first necked flange is sleeved on the front end cylinder, penetrates through the front end surface of the shell and abuts against the inner side of the shell; a second necked flange is sleeved on the rear end cylinder, penetrates through the rear end face of the shell and is fixed on the outer side of the shell by screws; a locking nut is connected to the locking threaded column in a threaded manner;
the middle part of the driving plate is provided with a connecting column, the connecting column and the driving plate are provided with limiting holes corresponding to the limiting square columns, and the connecting column is sleeved on the limiting square columns.
4. The manual switch-on/switch-off mechanism of a circuit breaker according to claim 3, wherein the outer diameters of the front end cylinder and the rear end cylinder are equal and smaller than the outer diameter of the middle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521782.0U CN212695103U (en) | 2020-07-28 | 2020-07-28 | Manual opening and closing mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521782.0U CN212695103U (en) | 2020-07-28 | 2020-07-28 | Manual opening and closing mechanism of circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN212695103U true CN212695103U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021521782.0U Active CN212695103U (en) | 2020-07-28 | 2020-07-28 | Manual opening and closing mechanism of circuit breaker |
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| CN (1) | CN212695103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745046A (en) * | 2021-09-24 | 2021-12-03 | 广西真舜电力科技有限公司 | Manual switching-on and switching-off device of sliding type permanent magnet mechanism |
-
2020
- 2020-07-28 CN CN202021521782.0U patent/CN212695103U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745046A (en) * | 2021-09-24 | 2021-12-03 | 广西真舜电力科技有限公司 | Manual switching-on and switching-off device of sliding type permanent magnet mechanism |
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